VARIABLE PITCH TYPE; FERROUS METAL, NON FERROUS METAL, NON METAL CUT MATERIAL; HARDENED M3 HSS TEETH BLADE MATERIAL; 2-1/2 INCH DIAMETER; 2.5 DIAMETER - DECIMAL; 2-1/2 DIAMETER - FRACTIONAL; 1-1/8 INCH CUTTING DEPTH; RIDGID. BRAND